the translucent quality of their abdomens. The opisothoma of T. grallator, like in most spiders, is thin and thus relatively transparent. Because of the transparent nature of its opisothoma, substances from the diet can be observed within the body. Usually, digestive products appear a dark brown-black color. At times, various pigments from the dietary byproducts are deposited in the hypodermis of T. grallator. These pigments may arise if they confer selective advantages - pigments may be dull or vibrant in hue. A common color change is from the translucent yellow to orange, most likely due to the high level (approximately 70%) of dietary consumption of dipterans. Upon consumption of other types of prey, the T. grallator may temporarily change to other colors such as dark brown. Color pigments can be retained in the abdomen for two to six days. Once the food is digested and excreted, the color of the abdomen returns to its original translucent pale yellow. Adult predatory feeding T. grallator spiders do not utilize webs to capture prey, so they do not follow the sit-and-wait method of web-building spiders. Instead, they will forage freely, often traveling to nearby leaves to capture insects. During prey capture, T. grallator spiders use their silk. Common prey include Dolichopodidae and Drosophilidae. There is no correlation between prey preference and resident leaf species. However, depending on the species of the resident leaf, T. grallator may exhibit different predator behavior. For example, on Hedychium leaves, these spiders are more aggressive toward prey despite often having a lower prey capture rate as compared to residence on other species of plants. Predators Carnivorous caterpillars from the genus Eupithecia have been observed attacking T. grallator. There are several species of Eupithecia on the Hawaiian islands that prey on T. grallator. These caterpillars lie on leaves and may attack spiders that make contact with the ends of their bodies. When attacked, T. grallator attempts to bite the caterpillar and flee. Eleutherodactylus coqui is an invasive species of frog originally from Puerto Rico that preys on T. grallator. It was spotted in Hawai'i in the 1980s. Webs T. grallator lives beneath the leaves of plants, where they spin a relatively small two-dimensional web. Webs are usually found on the undersides of leaves and occasionally in the crevices of trees. T. grallator webs are often very flimsy and even tangled. This is very typical of the Theridiid spiders. T.